Elimination Method:

The equations are

  Equation (1)

     Equation (2)

Since the coefficients of b-terms are additive inverses, these terms can be

elimanted by adding equations.

Write the equations in column form and add the corresponding columns.

Now, find the b value by substituting  in .

\ \

            (Multiply: )

Apply division property of equality: Divide each side by negative 5.

                       (Cancel common terms)

The system of solution is .